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प्रश्न
Identify the correct statement.
विकल्प
Tissue is a group of dissimilar cells
An organ consists of similar cells
Vacuoles are not found in plant cells
Prokaryotes do not have nucleus
उत्तर
Prokaryotes do not have nucleus
Explanation -
Prokaryotes do not have a well defined nucleus. The irregularly-shaped region that contains their genetic material is called nucleoid.
The other statements in correct form are:
- Tissue is a group of similar cells.
- An organ consists of different tissues.
- Large vacuoles are found in plant cells.
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संबंधित प्रश्न
Fill in the gaps in the following table, illustrating differences between prokaryotic and eukaryotic cells.
| Prokaryotic cell | Eukaryotic cell | ||
| 1. | Size: generally small (1–10 µm) 1 µm = 10-6 m | 1. | Size: generally large (5-100 µm) |
| 2. | Nuclear region: ____________ ____________ and is known as _____. |
2. | Nuclear region: well defined and surrounded by a nuclear membrane. |
| 3. | Chromosome: single | 3. | More than one chromosome |
| 4. | Membrane-bound cell organelles absent |
4. |
____________ |
Distinguish between prokaryotic and enkaryotic cells
Write main differences between plant and animal cells.
Distinguish between the following pairs of science :
Prokaryotes and eukaryotes
Prokaryotes were the first form of life on earth.
Analogy
Prokaryote : Bacteria :: Eukaryote :_______
Which one is the prokaryotic cell among the following?
______ cells were the first form of life on earth.
Give two examples of prokaryotic cells?
Define Prokaryotic cells.
